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DP4 Bushings

DP4 metal-polymer low friction plain bearings are high-performance bushings designed for excellent wear resistance and low friction under various operating conditions. With easy installation, these bearings help reduce system cost, size, and weight. They offer quiet, maintenance-free or lubricated operation, eliminate corrosion issues, and ensure outstanding dimensional stability—making them an ideal choice for reliable and efficient equipment performance.

Standard Bearing Forms:
  • Cylindrical bushes / split bushings
  • Flanged bushes / split flanged bushings
  • Sliding plates
  • Thrust washers
  • Flanged washers
Custom Options:
  • Metric bearings and imperial bushings made to order
  • Standard bushing forms in special sizes
  • Half-bushings
  • Stamped/deep drawn shapes
  • Bearings with locating notches
  • Bearings with lubricant holes and grooves
  • Customized designs
dp4 bushings for gear pump

Состав

  • Metal-Polymer Composite Bushing Material
  • Steel back + Porous  Bronze Sinter +
  • PTFE + Fillers
composition of DP4

DP4 Datasheet

BEARING PROPERTIES
UNITS VALUE
GENERAL
Maximum load, p N/mm² Static: 250
Dynamic: 140
Operating temperature °C Min: -200
Max: 280
Coefficient of linear thermal expansion 10-6/K Parallel to the surface: 11
Normal to the surface: 30
DRY
Maximum sliding speed, U m/s 2.5
Maximum pU factor N/mm² × m/s 1.0
Coefficient of friction, f 0.04 - 0.25*
OIL LUBRICATED
Maximum sliding speed, U m/s 5.0
Maximum pU factor N/mm² × m/s 10.0
Coefficient of friction, f 0.02 - 0.08
RECOMMENDATIONS
Shaft surface roughness, Ra μm Dry: 0.3 - 0.5
Lubricated: ≤ 0.05 - 0.40*
Shaft surface hardness HB Unhardened acceptable, improved bearing life
> 200

Contact us today for a quick quote or expert advice—discover the perfect solution for your application and experience the benefits of advanced metal-polymer bearing technology!

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